#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	int a = 1, b = 2;
	switch (a)
	{
	case 1:b++;
	case 2:a++;
	case 3:
		switch (a)
		{
		case 1:
			a++;
		case 2:
			b++; a++;
			break;
		}
	case 4:
		b++;
		break;
	default:
		break;
	}
	printf("b = %d, a = %d \n", b, a);
	return 0;
}
